unified atomic mass unit

noun

A unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.

Meanings

noununified atomic mass unit (plural unified atomic mass units)

plural unified atomic mass units

  1. chemistryA unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.

    Synonyms: dalton, atomic mass unit

Synonyms & antonyms

nounA unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.

Cite this entry
APA

unified atomic mass unit. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/unified%20atomic%20mass%20unit

MLA

“unified atomic mass unit.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unified%20atomic%20mass%20unit. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “unified atomic mass unit,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/unified%20atomic%20mass%20unit.

Source: unified atomic mass unit on Wiktionary, CC BY-SA 4.0.